Door Wiring Module Planar Integration

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Solution Overview

Problem

Existing door wiring systems face challenges in maintaining a constant shape and easy assembly due to the use of elastic weather strips, making it difficult to integrate wiring members effectively into vehicle doors.

Innovation Solution

A door wiring module that incorporates a door functional planar member between the door panel and design trim, with a wiring member fixed to the planar surface of this member, allowing for easy assembly and integration while reducing door thickness and increasing interior space.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a weather strip is used to hold the door harness, then the wiring member can be integrated into the door, but the shape of the door harness is not maintained constant and assembly is difficult

Engineering Contradiction:

Improveintegration of wiring member into doorVSAvoidassembly ease

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The invention divides the door structure into distinct functional layers: door panel, door functional planar member (with wiring member), and design trim. This segmentation allows the wiring member to be integrated into the door while maintaining its shape, as it is mounted on the planar surface of the door functional planar member rather than being held by the elastic weather strip.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If a weather strip is used to hold the door harness, then the wiring member can be integrated into the door, but the door thickness increases and interior space decreases

Engineering Contradiction:

Improveintegration of wiring member into doorVSAvoidinterior space

Core Design Contradiction:

Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The wiring member is mounted on the planar surface of the door functional planar member, utilizing the two-dimensional surface area rather than requiring additional three-dimensional space. This dimensional approach allows wiring integration without increasing door thickness, thereby preserving interior space.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Adaptability or versatility

If flexible flat cables or substrates are used for wiring, then the wiring member can be integrated into the door, but the cost increases

Engineering Contradiction:

Improveintegration of wiring member into doorVSAvoidmanufacturing cost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The invention uses covering wires with simple insulation instead of expensive flexible flat cables or substrates. This cost-effective approach achieves wiring integration into the door without requiring high-cost materials, thereby reducing manufacturing costs while maintaining functionality.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Data Source

PatentUS11472352B2Door wiring module

Publication Date: 2022.10.18 AUTONETWORKS TECH LTD

AI summary

A door wiring module includes a door functional planar member and a wiring member. The door functional planar member is incorporated between a door panel and a design trim in a door of a vehicle. The wiring member is wired on a planar part of a main surface of the door functional planar member where a groove is not formed, and fixed to the door functional planar member.